Francis Turbine Shaft Protected With Belzona®

Industry:

Power (POWR)

Application:

Mechanical Power Transmission (MPT)

Customer Location:

Hydroelectric Power Station, France

Application Date:

November 2006

Application Situation:

Main shaft, 160 mm diameter, 1000 rpm.

Problem:

Shaft damaged by cavitation and erosion

Products:

Belzona® 1341 (Supermetaglide)

Belzona® 2141 (ACR-Fluid Elastomer)

Belzona® 2941 (Elastomer SP-Conditioner)

Substrate:

Steel

Application Method:

After blasting the surface, Belzona® 1341 was applied in one coat. Belzona® 2941 conditioner was used to tie in the Belzona® 2141 system.

Belzona Facts:

The application was carried out on the shaft in a lathe and the finish was obtained by using a rubber squeegee. Inspection of the Belzona® 2141 in 2007 and 2010 showed the system still in perfect condition.

Photographs Description

1. Shaft damaged by cavitation/erosion
2. Belzona® 2141 after the application
3. Inspection of Belzona® 2141 protection of the turbine shaft after 9 months in service.